[ stur-noh-klahy-duh-mas-toid ]
/ ˌstɜr noʊˌklaɪ dəˈmæs tɔɪd /
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of, relating to, or involving the sternum, the clavicle, and the mastoid process.
a thick muscle on each side of the neck, the action of which assists in bending the head and neck forward and sideways.
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Words nearby sternocleidomastoid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for sternocleidomastoid
As you glide down, turn your head away from your hand and follow the sternocleidomastoid toward your back.
Medical definitions for sternocleidomastoid
[ stûr′nō-klī′də-măs′toid ]
Relating to or characterizing the sternum, the clavicle, and the mastoid process.
A muscle with origin from the anterior surface of the episternum and from the sternal end of the clavicle, with insertion into the mastoid process and the superior nuchal line, with nerve supply from the accessory nerve, and whose action turns the head obliquely to the opposite side and flexes the neck and extends the head when both sides act together.sternomastoid
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.